Wiz Khalifa now has his very own exclusive weed-related products line courtesy of a new partnership with Colorado-based RiverRock Cannabis. This is the Pittsburgh rapper’s first foray into the regulated cannabis industry and his line will include his own strains of the leaf and other connected items. The partnership between Wiz and RiverRock was announced earlier today (Feb. 4), and is the second partnership the “Black & Yellow” star has struck that speaks to his…